STeps 1.2.3.

 Get an NPI number. A National Provider Identifier.

• If you are an RN, IBCLC use this taxonomy number on the                      application: 163WL0100X.                           If you are a Non-RN,IBCLC use this one: 174N0000X.
• If you already have one, be sure one of these two taxonomy numbers is added to your number profile. To apply for or change your NPI:  https://nppes.cms.hhs.gov/#/

Decide if you will be using your social security number for business purposes or you must secure an EIN Number, an Employer Identification Number, from www.irs.gov.   

Step 3. Go online and apply to be an In-Network Participating Provider. For this manual and example, I will use Aetna.

http://www.aetna.com/healthcare-professionals/join-aetna-network/join-provider-network.html

Tip: Put "not applicable" or "0000s" in the fields you cannot answer.

It is also acceptable to put your IBCLC Number when asked for License Number and then leave the other licensing fields blank.

More steps are featured in my manual. Purchase at https://learn.anniefrisbie.com/crashcourse/aqgbh